Cutting and creasing press



Feb; 5 {1924.

Filed Feb. 5, 1921 5 Sheets-Sheet 1 w nuw w s b Feb. 5, 1924. K1,482,391 F. S. ENGLISH v CUTTING AND CREASING PRESS I Filed Feb. 5,1921 5 Sheets-Sheet 2 FeB. 5 1924. 1,482,391

' F. s. ENGLISH CU'ETING ANP.CREASING PRESS 7 Filed Feb. 5, 1921 5Sheets-Sheet 5 5 Sheets-Sheet 4 Filed Feb. 5, 1921' F s ENGLISH CUTTINGAND CREASING PRESS Feb. 5, 1924..

Feb 5 1924. 1,482,391

F. s. ENGLISH CUTTING AND CREASING PRESS.

Filed Feb. 3, 1921 5 Sheets-Sheet 5 Patented Feb. 5, 1924.

lT'E? ,STATS FRED s. ENGLISH, on NEW LONDON, CONNECTICUT.

CUTTING AND CREASING PRESS.

Application filed February 3,1921. Serial No. 442,096.

ments in Cutting and Creasing Presses, of

which the following is a specification.

My invention relates to anovel jacket device for the impression cylinderof a press .on which cutting and creasing of cardboard,

etc., is to be done. My invention is adapted to be applied to a printingpress for the purpose of converting it for cutting and creasing work, orit maybe applied to a press which is specially built only for cuttingand creasing.

In cutting and creasing cardboard, as

i where blanks from which cardboard boxes are to be made are cut andcreased, itis customary to make'up a formof cutting and creasing rules,in a chase, then mount the chase on the bed of a printing press, and runthe sheets of cardboard through the press about thesame way as sheets ofpaper arerun through apress when printing. The cutting rules are sharpandcut through the blank sheet whereasthe creasing rules are dull and ofless height thanthe cutting rules and they crease the sheet so that itmay be readily folded on the crease lines to form a box or otherarticle.

For cutting and creasing it is customary to place a hard jacketgenerally of hardened steel, on the impression cylinder of the press,against which the cutting rules out the sheets of cardboard. A matrix ofheavy stock is generally 'made up on this jacket as a means againstwhich the creasing rules can press the sheets to crease them.

The present invention relates to the construction of the jacket used forcutting and creasing on presses and to the means for attaching the sameto the impression cylinder of the press. One object of my invention isto provide means whereby the jacket may be readily detached at one endand whereby it may be swung upwardly from a pivotal connection at theother end to permit make ready to be inserted between the acket and :01part of the cylinder,

parts of a p the drawings.

rear end of the jacket to be made without bend and this is importantbecause it '18 very difiicult to make jackets of hardened steel whichwill not break, where the ends are bent in to be secured to thecylinder.

The device at the leading end of the jacket permlts the jacket to swingon a pivot, remaining attached to the cylinder while the .make ready isbeing inserted under the jacket, and it also permits'the jacket to bequickly and bodily detached from the cylinder and it also permits theleading end of the cylinder to be made without an in- .turn or bend.

Another object of my invention is toprovide for the insertion of makeready right up to the forward end of the jacket, so

.that all portions of the jacket are accessible application,

Figure '1 is a side elevation of a press arranged for cutting andcreasing,

Figure 2 is a sectional view of the impression cylinder and the jacket,showing the latter in condition for operation,

Figure 3 is a plan View of one corner of the leading end of the jacketand its securing means,

Figure 4 is an enlarged sectional view showing the leading end of thejacket and its securingimeans,

Figure 5 is a similar view showing the jacket swung up on its pintl-esto permit make ready to be placed under it,

Figure 6 is an enlarged sectional view showing therear end of the jacketand its securing means, and

Figure 7 is a. plan view thereof.

In Figure l I have shown some of the press for cutting and creasing andin this view I have shown the feed table 1 from which the sheets arefed, the impression cylinder 2, to which my present improvements areapplied: the bed 3, the delivery device 4:, and the raising and loweringpile table 5 to receive the sheets from the delivery device. The pressmay comprise an ordinary printing press or it may be apress especiallyconstructed for cutting and creasing, as shown in Figure l of areespecially related to or associated with the impression cylinder andthis, is the only The present improvementsmember of the press properwhich is shown in the remaining figures of the drawings.

The cylinder 2 is provided with an impression portion 6 extendingpartially around it and the removable jacket 13 is applied tightlythereover and the matrix, not shown, is attached to this jacket and isthen routed out to correspond with the cutting and scoring rules in theform which is to be used for any particular job.

The jacket 13 is made without end bends; i. e., it is either fiat orarched to correspond with the curvature of the cylinder 2 but its ends10, 11 are not inturned for securement to the impression cylinder as 1have provided means for securing the ends in a novel way.

The leading or gripper end 10 of the jacket is shown in Figures 3, 4 and5 and I will first describe the means for attaching this end of thejacket to the cylinder. The leading end of the jacket is permanentlysecured to a small section or bar 14 which extends across the leadingend of the jacket parallel with the edge. This attachment is preferablymade by means of rivets 15 pass ing through the jacket and the bar 14,althoiwh it will be obvious that the jacket and bar may be weldedtogether. If rivets or screws are used, the heads should be countersunkin the jacket as shown herein. To the smaller bar 14 and the jacketthere is attached a larger or heavier bar 16, by means of the screws 17,this latter bar also extending across the edge of the jacket. These bars14 and 16 secured together as if they were one, are adapted to seat in anotch or recess 19 in the forward edge of the impression cylinder, so asto be below or within the circle or are of the jacket. The bar 16 isprovided with a number of apertures which receive therein the dowel pins20 projecting from the edge 20 of the cylinder 2. The bar 16 is heldengaged on the dowel pins 20 and pressed against the edge of theimpression portion of the cylinder 2 by means of clamps 21 secured tothe shaft 21. The bar 16 is detachably hinged to the cylinder asfollows: On each end of the bar 16 there is attached a plate 22 by meansof screws 23. This plate has a slot 23 which fits over a stud 24, thelatter being driven into the cylinder, and the construction isduplicated at both sides of the cylinder. A screw 26 passing through oneof the jaws of the plate 22 prevents the plate from disengaging from thestud 24 and the slot 23 is elongated to permit the plate 22 to slidealong the stud 24 sutliciently to remove the bar 16 from the dowel pins20. The jacket may then be swung upwardly on the studs 24 as a hinge, asis shown in Figure 5, to permit make ready to be inserted under thejacket. Or, the jacket may be entirely removed from the cylinder byturning the screws 26 and releasing the plates 22 from the studs 24. Thebars 14 and 16 it will be obvious, are movable with the jacket when thelatter is manipulated.

It may be desirable to place make ready right up to the leading edge ofthe jacket where the sheet grippers 40 engage it, but if the bar 16 wereintegral with the jacket this could not properly be done, or at leastthe extreme end of the jacket could not be raised locally crosswise ofthe cylinder because the bar 16 would be too rigid to ad just itself tolocal make ready. In the present case the bar 14 is adapted to adjustitself to or is bendable under local make ready as the latter may beinserted between the bar 14 and the bar 16. For this purpose, the screws17 may be loosened and the make ready may be placed between the bars 14and 16, to bring the leading end of the j acket up to the required levelto suit the rules in the form. This make ready need not be of equalthickness all across the jacket but it may vary locally. When this makeready has been applied, the screws 17 are tightened again.

The device for detachably securing the rear end of the jacket to thecylinder is constructed as follows:

The rear end 11 of the jacket is provided with a number of holes 28across the jacket and these holes receive therein the heads of theadjustable pins 29. The pin 29 fits and moves in an aperture 41 in thecasting 30 which fits over and is held by the shaft 31. There will be anumber of these castings, corresponding with the holes 28 in the jacket,all of which are mounted on the shaft 31; and as they are all alike adescription of one will answer for all. The castings 30 may revolveloosely on the shaft 31, and they are prevented from shifting lengthwiseof the shaft by means of the screws 32, engaging loosely in thecircumferential grooves 33 in the shaft. The headed pin 29 is held inthe required position by means of a set screw 34 the pin 29 beingadjustable in its aperture 41 in the casting. The set screw 34 projectsinto a circumferential groove 45 in the pin 29 which groove issufficiently wide to permit for the adjustment of the pin 29, the setscrew locking against the bottom of this groove to hold the pin 29 inadjusted position. As the set screw 34 need be turned but slightly toallow for the adjustment of the pin 29 its end always projects into thegroove 45 and therefore the pin 29 will not drop out of the casting evenwhen the jacket is removed from the cylinder.

There is a coiled spring 37 for each casting 30 and it surrounds theshaft 31, one end of the spring being anchored in the casting 30 and theother pressing against the edge of the cylinder. The spring 37 tends toIll the cylinder.

portion of the cylinder.

through the casting 30 and .the irear endof the impression portion of Torelease the ,rear end of'the.

der.

end of jacket.

swing the casting. 30 to the v ight-in Figure 7 or toward the rear edgeof theimpression The belt 36, there being ,one for each casting, isthreaded its end engages jacket it is only necessary to slack off ,theseveral screws 36,and the-springsi37 swing thecastings 3Otowardthe-edgeiof the cyflinder. The end of the jacket may then bereleased from the heads OfthB several ,pins 29. When the jacket isreplaced, the springs 37 hold the castings.30,in position sothat thepins 29 will enter the holes 28. The-sev- .er al screws 36 are thenturned and this turns the castings 30 on their shaft 31, --moving thepins 29 away from the cylinder edge and thusti'ghtening-up the jacket onthe cylin- It is only necessary .to manipulatethe several screws 36-to.attach orrelease the rear If. the cylinder is operated without thejacket there is nothing to interfere with its revolution, and there areno loose parts carriedby it. I.

The present device is very economical :to

make. Anotheradvantage is that when the jacket is removed the partsremain in the position to receive it vwhen :the jacket is replaced againThe rear end Ofytl'lfi jacket, like the forwardiend, need not be-bentinwardly from the-curvatureof the remainder of the cylinder.

I have found that when the rear clamps are drawn up tight to tighten thejacket on the cylinder the strip 16 has a tendency to rise up at itsforward edge or to rock against the edge 18 of the impression cylinder.To prevent this, I have provided a groove on the forward edge of thestrip 16, to form a shoulder 42 and the clamping ends of the tympanclamps 2l are provided with adjustable screws 43 which form what amountsto a hook, to engage over the shoulder 42 and thus prevent the strip 16from rising at this edge, as well as holdin'g the strip tight on thedowel pins.

Having described my invention, what I claim is:

1. In a press the combination with the impression cylinder, of a jacketfor the impression portion thereo a strip secured across the leadingedge of the jacket at the inner surface thereof and having its outersurface curved to conform to the curvature of the cylinder surface, asecond strip inside said first strip, means for securing said stripstogether and adapted to permit the strips to be slightly separated topermit make ready to be inserted between the strips.

2. In a pressthe combination with the impression cylinder, of a jacketfor the impression portion thereof, a relatively thin strip securedacross the leading edge'of the jacket at the inner surface thereof andadapted rtO yield Llocally iunder the action of .make ready and havingits outer surface curved to conform to the curvature of the .cylindersurface, asecondand more rigid stripinside said firststrip, meansfor securing said strips together and adapted to permit the strips to beseparated to permit makereadyto be inserted between the strips. 3. In apress the combination with the impression cylinder, of a jacket for theimpression portion thereof, a relatively thin strip secured across theleading edge of the jacketat the inner surface thereof, a second stripinside said first strip, means for securing said strips together andadapted to per- ,mit the strips to be partially separated to.permitma-ke readyto be inserted between the strip secured across theleading edge of the jacket at the inner surface thereof, a. second stripinside said first-strip, means for securing said strips together andadapted to permit the insertion of make readybetween said strips, dowelpins on the cylinder adapted to be received in said second strip andhinge supports on which said jacket .and its strips are adapted toswingand to slide, whereby the said second strip may be moved into andout of engagement with said dowel pins while engaged with the hingesupports.

5. In a press the combination with an impression cylinder, of a jacketfor the impression portion therof, a strip extending crosswise at theleading edge of the jacket, dowel pins in the cylinder adapted to bereceived in said strip, said strip having a shoulder on the sideopposite the dowel pins, and tympan clamps for holding said stripengaged with said dowel pins and arranged to engage over said shoulderof the strip for the purpose set forth.

6. In a press the combination with the impression cylinder, of a jacketfor the impression portion thereof, means for securing the leading edgeof the jacket to the cylinder, and means for detachably secur ing therear edge of the jacket to the cylinder, comprising a shaft, clampspivoted to swing on said shaft toward and from the end of the impressionportion of the cylinder, and headed pins insertible in apertures in therear end of the jacket and extending into said clamps in a directionsubstantially radially of the cylinder and means for forcing said clampsin the direction necessary to tighten the jacket on said cylinder.

7. In a press the combination with the clamps impression cylinder, of ajacket for the impression portion thereof, means for securing theleading edge of the jacket to the cylinder, and means for detachablysecuring the rear edge of the jacket to the cylinder, comprising ashaft, clamps pivoted to swing independently on said shaft toward andfrom the end of the impression portion of the cylinder, headed pinsinsertible in apertures in the rear end of the jacket and extendin intosaid clamps in a direction substantially radially of the cylinder, saidpins having grooves therein, set screws in said clamps entering saidgrooves and engaging said pins to hold them in the clamps, and means forforcing said clamps in the direction necessary to tighten the jacket onsaid cylinder.

8. In'a press the combination with the impression cylinder, of a. jacketfor the impression portion therof, means for securing the leading edgeof the jacket to the cylinder and means for detachably securing the rearedge of the jacket to the cylinder, comprising a shaft, clamps pivotedto swing on said shaft toward and from the end of the impression portionof the cylinder, springs urging said clamps toward said end of thecylinder and bolts for forcing said away from the cylinder end, headedpins insertible in apertures in the rear end of said jacket and movablein said clamps substantially radially of said cylstrips to be slightlyseparated to perm t make ready to be inserted between the strips, andhinge supports connecting said second strip with the cylinder wherebythe jacket may be swung on said hinge sup ports.

10. In a press the combination with the impression cylinder, of a jacketfor the impression portion therof, means for securing the leading edgeof the jacket to the cylinder, and means for detachably securing therear edge of the jacket to the cylinder, comprising a shaft, clampspivoted to swing on said shaft toward and from the end of the impressionportion of the cylinder and having headedpins extending outwardly fromsaid clamps in a directionradially of said cylinder, and means forforcing said clamps in the direction necessary to tighten the jacket onthe cylinder.

Signed at New London, in the county of New London and State ofConnecticut, this 11th day of January, 1921.

FRED S. ENGLISH.

